{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "RNA", "DNA", "protein"], "input": "Here we have therefore examined the effect of the phorbol ester PMA ( phorbol 12-myristate 13-acetate ) which stimulates PKC and a combination of the adenosine receptor agonist NECA ( 5'-(N-ethyl)-carboxamido adenosine ) and forskolin to raise cAMP , on the levels of c-Fos and Jun and on the binding and transcriptional activity of the transcription factor , activator protein-1 ( AP-1 )."}
{"cell line": [], "RNA": [], "DNA": [], "protein": ["PKC", "adenosine receptor", "c-Fos", "Jun", "transcription factor", "activator protein-1", "AP-1"]}